EP2218308B1 - Light output device - Google Patents

Light output device Download PDF

Info

Publication number
EP2218308B1
EP2218308B1 EP20080855505 EP08855505A EP2218308B1 EP 2218308 B1 EP2218308 B1 EP 2218308B1 EP 20080855505 EP20080855505 EP 20080855505 EP 08855505 A EP08855505 A EP 08855505A EP 2218308 B1 EP2218308 B1 EP 2218308B1
Authority
EP
European Patent Office
Prior art keywords
control
device
light source
power
source device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP20080855505
Other languages
German (de)
French (fr)
Other versions
EP2218308A1 (en
Inventor
Maarten M. J. W. Van Herpen
Markus C. Vermeulen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke Philips NV
Original Assignee
Koninklijke Philips NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to EP07121943 priority Critical
Application filed by Koninklijke Philips NV filed Critical Koninklijke Philips NV
Priority to PCT/IB2008/054918 priority patent/WO2009069062A1/en
Priority to EP20080855505 priority patent/EP2218308B1/en
Publication of EP2218308A1 publication Critical patent/EP2218308A1/en
Application granted granted Critical
Publication of EP2218308B1 publication Critical patent/EP2218308B1/en
Application status is Active legal-status Critical
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • H05B47/18
    • H05B45/00
    • H05B47/185
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T307/00Electrical transmission or interconnection systems
    • Y10T307/25Plural load circuit systems
    • Y10T307/258Common conductor or return type

Description

    FIELD OF THE INVENTION
  • This invention relates to light output devices, in particular using discrete light sources arranged as a string of devices.
  • BACKGROUND OF THE INVENTION
  • It is known to provide a string of light output devices, such as LEDs, and designed such that the "string" can be cut to any length. One end is connected to a power supply, in order to provide a decorative lighting product.
  • Devices of this type are used for signage, band lighting (e.g. petrol stations) and architectural applications, in which neon or fluorescent lighting would previously have been used. The string can be designed to be flexible, water resistant and robust. The LEDs are sealed devices, typically incorporating a heat sink and optics.
  • A light output device of the above-mentioned type is disclosed in the patent document with publication number US2006/0197474A1 . More particularly, this document describes a modular lighting system including a multiple conductor wire, including a common data wire, and a plurality of light source device arrangements disposed along the multiple conductor wire. Each arrangement comprises a LED, and a microprocessor.
  • A problem with this type of device is how to control the on/off state and/or output level of individual light output devices in the string in a simple manner, while still enabling the string to be reduced in length.
  • SUMMARY OF THE INVENTION
  • According to the invention, there is provided a light output device comprising:
    • a power connection for connecting to a power source;
    • a plurality of light source device arrangements arranged in a line extending from the power connection, with adjacent light source device arrangements in the line connected together with an electrical connector arrangement comprising at least one power supply line and at least one power return line, the connector arrangement adapted to carry at least one control signal;
    • a plurality of control circuits, each light source device arrangement associated with a control circuit from the plurality of control circuits for providing independent control of the light source device arrangement output based on the control signal,
    wherein the device can be reduced in length by disconnecting the connector arrangement between an adjacent pair of light source device arrangements,
    wherein remaining light source device arrangements extending from the power source are independently controlled by the control signal, which device is further characterized in that the control input of each control circuit is adapted to receive a serial data signal and to control the switching of the drive signal to the output in dependence on one or more bits of the data signal, and in that each control circuit is adapted to output a serial data signal from which the one or more bits of the serial data signal have been removed.
  • The device of the invention uses micro controllers associated with the light source device arrangements in the string. A single data line (or data signal modulated over one of the power lines) can then be used to control the full string of light source device arrangements. The power supply line and the power return line can e.g. be wires.
  • The control input of each control circuit is adapted to receive a serial data signal and to control the switching of the drive signal to the output in dependence on one or more bits of the serial data signal. In this way, a serial data signal can be passed from control circuit to control circuit using a shared control signal line, to effect control of the multiple control circuits. The control output of each control circuit is adapted to output a serial data signal from which the one or more bits of the serial data signal have been removed. Thus, each control circuit responds to pre-allocated parts of the serial control word, and then removes these parts of the control word so that the next controller can respond to its control signal.
  • At least one control circuit can comprise an input to which a drive signal is provided, an output for controlling the respective light source device arrangement, a control input for receiving a control signal and a control output for outputting a control signal. The circuit can then selectively couple a drive signal (a voltage or a current flow) to the light source device arrangement.
  • This enables control circuits to be coupled together using their control inputs and control outputs. In this way, they can be provided along a common control line (e.g. a wire) or set of control lines (e.g. wires), so that the control wires can be shared between the control circuits, or groups of control circuits.
  • The plurality of control circuits may be connected in a series, with the control output of one control circuit connected to the control input of the next control circuit. This enables a single data line to be used to control a group of light source device arrangements. The control signal is passed from circuit to circuit.
  • The power supply line can carry a current source output current, and this means the light source device arrangements and associated control circuits can be connected in series along the power supply line. Even when the string is cut to length, the brightness of the remaining light source device arrangements will be unchanged. The end of the line then preferably comprises a connector which connects the power supply line and the power return line, so that a current return path is provided.
  • Alternatively, the power supply line can carry a drive voltage. The light source device arrangements and associated control circuits can then be connected in parallel between the power supply line and power return line.
  • Each control circuit can comprise a microcontroller.
  • The electrical connector arrangement can comprise a control line for the control signal in addition to the power supply line and power return line, or else the control signal is provided (modulated) on one of the power lines.
  • It is noted that the invention relates to all possible combinations of features recited in the claims.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • Examples of the invention will now be described in detail with reference to the accompanying drawings, in which:
    • Figure 1 shows a first example of light output device of the invention;
    • Figure 2 shows how the control circuits can be controlled;
    • Figure 3 shows a second example of light output device of the invention; and
    • Figure 4 shows the appearance of an example of the overall product.
  • The same reference numbers are used to denote similar parts in the different figures.
  • DETAILED DESCRIPTION OF EMBODIMENTS
  • The invention provides a light output device where each light source device arrangement is associated with a microcontroller. The microcontroller controls the on/off state of the light output device.
  • Figure 1 shows a first example of device of the invention. In this example, the light source device arrangements are LEDs. The LED string comprises several unit cells 5, which are indicated with a dashed line in Figure 1. Each unit cell 5 comprises two power lines in the form of wires 1 and 2, an LED 4 (or a group of LEDs 4), a resistor 3, a microcontroller 7 and a data line in the form of wire 18. The power wire 1 is the return line and the power wire 2 is the supply line.
  • The microcontroller 7 is controlled by a signal on the data wire 18. As shown in Figure 1, an output from one microcontroller 7 is supplied to the input of the next microcontroller in the string, so that the microcontrollers are connected together in series.
  • In this example, the microcontroller has two power outputs, 16a and 16b, and the function of the microcontroller is essentially to couple a drive signal (current or voltage) from the power wire 2 to a selected one of the power outputs 16a, 16b.
  • Thus, based on the input provided on the data wire 18, the microcontroller 7 will transfer power from power wire 2 to wire 16a or wire 16b. Wire 16a functions as the power source for the LED 4, so that when power is supplied to 16a, the LED 4 will be turned on.
  • When power is supplied to wire 16b, the resistor 3 is supplied with power, such that the voltage difference stays constant. This resistor may not be required, in which case when an LED is not selected, the current simply bypasses the LED.
  • In alternative embodiments, a bypass mechanism can be used to short-circuit the LED, either continuously or intermittently. An intermittent short circuit function can be used as a way of providing dimming, without breaking the current path on power wire 2. This bypass mechanism is not shown in Figure 1.
  • Additional connections may be made in order to supply the microcontroller 7 with supply voltage or reference voltages. For example, the wire 16c shown in Figure 1 supplies the microcontroller with a reference voltage for the power supply.
  • In the example of LED devices, these are current-driven devices. As a result, the LEDs can receive their power from a central current source which supplies the power wire 2. By using a current source, all series-connected LEDs (such as the LEDs in Figure 1) will be driven by the same current and will therefore have the same brightness. The number of LEDs in the chain will not influence the brightness. There is of course a need for the current source power supply to have sufficient power/voltage that the on-current can be driven through the maximum number of series-connected LEDs.
  • The microcontroller is powered by power wire 1 or 2, which is present in each module.
  • The data received by the microcontroller through data wire 18 is forwarded to the next microcontroller in the string. Preferably, the microcontroller 7 modifies this data such that the next microcontroller knows where in the string it is located and what part of the data should to be used. For example, every microcontroller might use the first data symbol, and it forwards the full data string excluding the first symbol.
  • Figure 2 shows in more detail how a string of data "110" is input to data wire 18 and interpreted by the microcontrollers. The first microcontroller 7 uses the first symbol in this string "1" to determine that its corresponding LED 4 should be turned on. The microcontroller removes the first item in the data string, and forwards the remaining data "10" to the next microcontroller using the its control output, which defines the continuation of the data wire 18. Similarly, the next microcontroller turns the LED on, and forwards the data "0" to the final microcontroller, which turns its LED off.
  • In this embodiment, only one data wire 18 is shown. However, multiple data wires 18, or a combination of a data wire and a low power supply for the microcontroller may be used.
  • As an example of a microcontroller, a 6-Pin, 8-Bit Flash Microcontroller can be used, for example PIC10F200/202/204/206 by Microchip Technology Inc.
  • In the example of Figure 1, the two power wires 2 and 1 act as a supply line and a return line. The current source power source is connected between wires 1 and 2, and an end-connector is required at the end of the string between the power wires 1 and 2.
  • Because the structure in Figure 1 is comprised of unit cells, the string may be reduced in length without disabling the control with the micro controllers. In Figure 1 the unit cells 5 are connected in series. However, it is also possible to connect unit cells in parallel. This is shown in Figure 3.
  • In this example, each microcontroller controls the switching of power from the power wire 2, and the power wire 2 connects in parallel to each microcontroller 7. Two outputs 16a, 16b from the microcontrollers are in parallel to the return power wire 1.
  • An advantage of a parallel connection approach is that failure of one LED does not lead to problems for the other LEDs.
  • In this example, the power wire 2 can be voltage driven, as the same voltage will be applied across all LEDs. In this example the wire 16a is connected to the LED. In an alternative embodiment the wire 16a may be connected to a combination of a LED + resistor, in order to make the operation of the LED more stable when connected in parallel with other LEDs.
  • The wire 16c is used as power supply for the microcontroller.
  • The unit cells in Figure 3 are in parallel, but the same series connection of the data wire 18 to the microcontrollers is provided.
  • Figure 4 shows an arrangement which provides a mixture of parallel and series connections. The first element 30 in this string is shown as larger, indicating the start of a parallel connection. The next four LED circuits are in series. This hybrid solution allows the supply voltage over the supply wires to be higher than that of a single LED 4, as they supply a set of series-connected LEDs (a set of four in this example). The system may nevertheless be reduced in length. Figure 4 also shows schematically the power course and master controller 32 which generates the control signal for the local individual LED control circuits and provides the drive signal.
  • Figure 4 shows only one branch, and multiple branches such as shown in Figure 4 can be connected together in parallel.
  • The microcontroller and the LED can be merged into a single discrete device. As mentioned above, the microcontroller can also be used to control the light intensity of the LED. This may for example be achieved using the microcontroller to implement local pulse-width modulation at the position of the LED.
  • In an alternative example, brightness control can be implemented using a microcontroller with several output connectors having a different resistance. For voltage driven applications (such as Figure 2), different output resistances from the controller 7 can be used to provide different voltage drops, and corresponding changes in the LED drive voltage and output brightness.
  • Optionally, the data wire 18 can be eliminated by superimposing the control signal on another wire, such as the power wire 2. This can enable the invention to be implemented using an existing LED string, so that the system of the invention is backward compatible with existing LED strings.
  • In general, the microcontroller 7 may be any electrical component comprising allowing a power supply input to be selectively routed (based on a control input) to an output, for driving the LED. Preferably, there is a second output for bypassing the LED. For example, a simplified device can comprise a transistor connected to the data wire 18. The data wire then selectively switches the transistor on or off, and thereby effects switching between a power wire common input and an output which drives the LED.
  • Each light source device arrangement may comprise a single light source or multiple light sources. A light source may comprise a single LED or multiple LEDs and one control circuit may control multiple light sources. Other types of light sources may also be used. When one control circuit is for multiple light sources, they may be different colors, for example red, green and blue, thus defining color sub-pixels of a single color light source.
  • In the examples above, the control circuit is for controlling brightness. Another function of the control circuit may be a programmed sequence of on/off states. For example, the control circuit may be instructed to let the LED blink on/off with a period of 1 second. Alternatively, it may be instructed to randomly turn the LEDs on/off with a predetermined average frequency (e.g. 1 Hz). Alternatively, it may be instructed with a sequence of on/off states which it will keep playing from the start of this sequence.
  • Thus, the control circuits can be used to implement a variety of programmable optical functions and effects. A lighting controller for the overall device is provided for controlling these effects, for controlling the signals provided to the individual control circuits.
  • Various modifications will be apparent to those skilled in the art.

Claims (13)

  1. A light output device comprising:
    - a power connection for connecting to a power source;
    - a plurality of light source device arrangements (4) arranged in a line extending from the power connection, with adjacent light source device arrangements in the line connected together with an electrical connector arrangement comprising at least one power supply line (2) and at least one power return line (1), the connector arrangement adapted to carry at least one control signal;
    - a plurality of control circuits (7), each light source device arrangement associated with a control circuit from the plurality of control circuits (7) for providing independent control of the light source device arrangement output based on the control signal,
    wherein the device can be reduced in length by disconnecting the connector arrangement between an adjacent pair of light source device arrangements (4),
    wherein remaining light source device arrangements extending from the power source are independently controlled by the control signal,
    characterized in that the control input of each control circuit is adapted to receive a serial data signal and to control the switching of the drive signal to the output in dependence on one or more bits of the data signal, and in that each control circuit is adapted to output a serial data signal from which the one or more bits of the serial data signal have been removed.
  2. A device as claimed in claim 1, wherein at least one control circuit (7) comprises an input to which a drive signal is provided, an output for controlling the respective light source device arrangement, a control input for receiving a control signal and a control output for outputting a control signal.
  3. A device as claimed in claim 1 or 2, wherein each light source device arrangement comprises a plurality of light source devices.
  4. A device as claimed in any one of claims 1 to 3, wherein a plurality of control circuits (7) are connected in a series, with a control output of one control circuit connected to the control input of the next control circuit.
  5. A device as claimed in any preceding claim, wherein the power supply line (2) carries a current source output current.
  6. A device as claimed in claim 5, wherein the light source device arrangements and associated control circuits are connected in series along the power supply line (2).
  7. A device as claimed in claim 6, wherein the end of the line comprises a connector which connects the power supply line (2) and the power return line (1).
  8. A device as claimed in any one of claims 1 to 4, wherein the power supply line (2) carries a drive voltage.
  9. A device as claimed in claim 8, wherein the light source device arrangements and associated control circuits are connected in parallel between the power supply line and power return line.
  10. A device as claimed in any one of claims 1 to 4, wherein the light source device arrangements and associated control circuits are connected as a plurality of parallel branches, with each branch comprising a plurality of source device arrangements and associated control circuits connected in series along the power supply line.
  11. A device as claimed in any preceding claim, wherein each control circuit (7) comprises a microcontroller.
  12. A device as claimed in any preceding claim, wherein the electrical connector arrangement comprises a control line (18) for the control signal in addition to the power supply line (1) and power return line (2).
  13. A device as claimed in any one of claims 1 to 11, wherein the control signal is provided on one of the power supply line (2) and power return line (1).
EP20080855505 2007-11-30 2008-11-24 Light output device Active EP2218308B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP07121943 2007-11-30
PCT/IB2008/054918 WO2009069062A1 (en) 2007-11-30 2008-11-24 Light output device
EP20080855505 EP2218308B1 (en) 2007-11-30 2008-11-24 Light output device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20080855505 EP2218308B1 (en) 2007-11-30 2008-11-24 Light output device

Publications (2)

Publication Number Publication Date
EP2218308A1 EP2218308A1 (en) 2010-08-18
EP2218308B1 true EP2218308B1 (en) 2013-06-19

Family

ID=40257331

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20080855505 Active EP2218308B1 (en) 2007-11-30 2008-11-24 Light output device

Country Status (6)

Country Link
US (1) US8378591B2 (en)
EP (1) EP2218308B1 (en)
JP (1) JP5341101B2 (en)
CN (1) CN101878673B (en)
TW (1) TWI554145B (en)
WO (1) WO2009069062A1 (en)

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050259424A1 (en) 2004-05-18 2005-11-24 Zampini Thomas L Ii Collimating and controlling light produced by light emitting diodes
US7766511B2 (en) 2006-04-24 2010-08-03 Integrated Illumination Systems LED light fixture
US7729941B2 (en) 2006-11-17 2010-06-01 Integrated Illumination Systems, Inc. Apparatus and method of using lighting systems to enhance brand recognition
US8013538B2 (en) 2007-01-26 2011-09-06 Integrated Illumination Systems, Inc. TRI-light
US8742686B2 (en) 2007-09-24 2014-06-03 Integrated Illumination Systems, Inc. Systems and methods for providing an OEM level networked lighting system
US8255487B2 (en) 2008-05-16 2012-08-28 Integrated Illumination Systems, Inc. Systems and methods for communicating in a lighting network
US8143811B2 (en) 2008-06-25 2012-03-27 Lumetric, Inc. Lighting control system and method
US8585245B2 (en) 2009-04-23 2013-11-19 Integrated Illumination Systems, Inc. Systems and methods for sealing a lighting fixture
DE102009044058A1 (en) * 2009-09-18 2011-03-31 Müller, Dietmar Dimmable fairy lights and switches for this
JP5466980B2 (en) * 2010-03-26 2014-04-09 パナソニック株式会社 Lighting module and lighting equipment mounting the same
CN103120024A (en) * 2010-06-29 2013-05-22 鲁美特里克照明股份有限公司 Lighting control system and method
FR2962878B1 (en) * 2010-07-16 2013-02-15 Isabelle Mames Device for modularity and regulation of internal electroliminescent lighting for individuals and professionals
EP2466996A3 (en) * 2010-12-16 2015-04-15 CP electronics GmbH Illumination system
US9066381B2 (en) 2011-03-16 2015-06-23 Integrated Illumination Systems, Inc. System and method for low level dimming
US9967940B2 (en) 2011-05-05 2018-05-08 Integrated Illumination Systems, Inc. Systems and methods for active thermal management
US8710770B2 (en) 2011-07-26 2014-04-29 Hunter Industries, Inc. Systems and methods for providing power and data to lighting devices
US9609720B2 (en) 2011-07-26 2017-03-28 Hunter Industries, Inc. Systems and methods for providing power and data to lighting devices
US9521725B2 (en) 2011-07-26 2016-12-13 Hunter Industries, Inc. Systems and methods for providing power and data to lighting devices
US20150237700A1 (en) 2011-07-26 2015-08-20 Hunter Industries, Inc. Systems and methods to control color and brightness of lighting devices
US9101017B2 (en) 2012-01-16 2015-08-04 Osram Gmbh Lighting module
US8894437B2 (en) 2012-07-19 2014-11-25 Integrated Illumination Systems, Inc. Systems and methods for connector enabling vertical removal
EP2891385B1 (en) * 2012-08-31 2017-06-14 Philips Lighting Holding B.V. Dc power distribution system detecting the position of the electrical device
US9379578B2 (en) 2012-11-19 2016-06-28 Integrated Illumination Systems, Inc. Systems and methods for multi-state power management
US9153171B2 (en) * 2012-12-17 2015-10-06 LuxVue Technology Corporation Smart pixel lighting and display microcontroller
US9420665B2 (en) 2012-12-28 2016-08-16 Integration Illumination Systems, Inc. Systems and methods for continuous adjustment of reference signal to control chip
US9485814B2 (en) 2013-01-04 2016-11-01 Integrated Illumination Systems, Inc. Systems and methods for a hysteresis based driver using a LED as a voltage reference
JP6162522B2 (en) * 2013-07-29 2017-07-12 ミネベアミツミ株式会社 Light emitting element driving device
US9322538B2 (en) * 2013-10-28 2016-04-26 Yau-Chin Peng Structure of LED light set
US10228711B2 (en) 2015-05-26 2019-03-12 Hunter Industries, Inc. Decoder systems and methods for irrigation control
US10030844B2 (en) 2015-05-29 2018-07-24 Integrated Illumination Systems, Inc. Systems, methods and apparatus for illumination using asymmetrical optics
US10060599B2 (en) 2015-05-29 2018-08-28 Integrated Illumination Systems, Inc. Systems, methods and apparatus for programmable light fixtures

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7598684B2 (en) * 2001-05-30 2009-10-06 Philips Solid-State Lighting Solutions, Inc. Methods and apparatus for controlling devices in a networked lighting system
JP4014715B2 (en) * 1997-12-26 2007-11-28 アビックス株式会社 LED illumination unit and LED illumination system
JP2003092195A (en) * 2001-09-18 2003-03-28 Toritsu Tsushin Kogyo Kk Led display device
DE10233437A1 (en) * 2002-07-23 2004-02-12 Siemens Ag Airport signaling control communication system uses OFDM power line communication including adaptive operation using measurement of received signals
US20060158882A1 (en) * 2002-09-06 2006-07-20 Koninklijke Philips Electronics N.V. Led assembly
CH695976A5 (en) * 2002-12-02 2006-10-31 Roland Weigel Apparatus and method for reducing the power consumption during start-up of a single-phase AC induction motor.
DE10326368A1 (en) 2003-06-06 2004-12-23 Held, Julia Flexible illumination device using light-emitting diodes spaced along strip-shaped flexible circuit board and connected in series groups supplied by decoders
FR2869027B1 (en) * 2004-04-15 2006-07-14 Commissariat Energie Atomique Recording system having a memory layer and a micropoint network
TWI257988B (en) * 2004-12-22 2006-07-11 Semisilicon Technology Corp Light emitting diode lamp with synchronous pins and synchronous light emitting diode lamp string
US7331688B2 (en) * 2005-04-29 2008-02-19 Semisilicon Technology Corp. Synchronous light emitting diode lamp string
US20060197474A1 (en) * 2005-03-07 2006-09-07 Olsen Jeremy E Modular lighting system
US7160140B1 (en) * 2005-07-13 2007-01-09 Gelcore Llc LED string light engine
EP1911331B1 (en) * 2005-07-27 2009-06-24 Philips Intellectual Property & Standards GmbH Lighting system and method for controlling a plurality of light sources
JP2007042418A (en) * 2005-08-03 2007-02-15 Mk Seiko Co Ltd Light emitting apparatus
RU2009102539A (en) * 2006-06-27 2010-08-10 Конинклейке Филипс Электроникс Н.В. (Nl) Large lighting area
US8228284B2 (en) 2007-01-26 2012-07-24 L.E.D. Effects, Inc. Lighting apparatus including LEDS and programmable controller for controlling the same
CN101657679B (en) * 2007-02-12 2013-10-30 皇家飞利浦电子股份有限公司 Control module for lighting system, lighting system and light module for lighting system
ITTO20070198A1 (en) 2007-03-16 2008-09-17 Reverberi Enetec S R L Method and system for regulating the luminous flux of lamps
CN101657672B (en) 2007-04-12 2013-03-27 皇家飞利浦电子股份有限公司 Light output device
JP5519490B2 (en) * 2007-04-24 2014-06-11 コーニンクレッカ フィリップス エヌ ヴェ LED string driving device having shift register and level shifter
EP2165576B1 (en) 2007-07-02 2018-08-08 Philips Lighting Holding B.V. Driver device for a load and method of driving a load with such a driver device

Also Published As

Publication number Publication date
EP2218308A1 (en) 2010-08-18
CN101878673A (en) 2010-11-03
JP2011505660A (en) 2011-02-24
JP5341101B2 (en) 2013-11-13
CN101878673B (en) 2014-02-12
WO2009069062A1 (en) 2009-06-04
US20100244734A1 (en) 2010-09-30
US8378591B2 (en) 2013-02-19
TWI554145B (en) 2016-10-11
TW200932037A (en) 2009-07-16

Similar Documents

Publication Publication Date Title
US9816673B2 (en) Vending machine with LED lamp assembly
US7274160B2 (en) Multicolored lighting method and apparatus
US7649326B2 (en) Highly efficient series string LED driver with individual LED control
EP1461980B1 (en) Light emitting diode driver
US6016038A (en) Multicolored LED lighting method and apparatus
EP2187705B1 (en) Floating switch controlling LED array segment
US6737814B2 (en) Enhanced trim resolution voltage-controlled dimming LED driver
US6527412B2 (en) Chasing rope light
US8148851B2 (en) Simplified lighting control system
JP4908709B2 (en) Lattice structure LED array for illumination
US20060109137A1 (en) Decorative illumination device
US7258463B2 (en) Multiple LED control apparatus and method
RU2524477C2 (en) Led lighting device with characteristic of colour temperature of incandescent lamp
US6072280A (en) Led light string employing series-parallel block coupling
US20090212717A1 (en) Power Supply System and Method for the Operation of an Electrical Load
CN101653041B (en) Methods and apparatus for simulating resistive loads
EP1433363B1 (en) Illumination system
US20110210674A1 (en) Multi-LED Control
US5854541A (en) Flicker light string suitable for unlimited series-connection
US7963670B2 (en) Bypass components in series wired LED light strings
CN1784931B (en) Single driver for multiple light emitting diodes
TWI374687B (en) Current feedback circuits, current compensation circuits, light emitting drivers and backlight systems
US20050174065A1 (en) LED light strings
JP4848537B1 (en) Light emitting diode array drive circuit
JP4370794B2 (en) LED dimming lighting device and lighting fixture

Legal Events

Date Code Title Description
17P Request for examination filed

Effective date: 20100630

AX Request for extension of the european patent to:

Extension state: AL BA MK RS

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

DAX Request for extension of the european patent (to any country) (deleted)
17Q First examination report despatched

Effective date: 20120711

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 618248

Country of ref document: AT

Kind code of ref document: T

Effective date: 20130715

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602008025505

Country of ref document: DE

Effective date: 20130814

REG Reference to a national code

Ref country code: CH

Ref legal event code: PFA

Owner name: KONINKLIJKE PHILIPS N.V., NL

Free format text: FORMER OWNER: KONINKLIJKE PHILIPS ELECTRONICS N.V., NL

RAP2 Rights of a patent transferred

Owner name: KONINKLIJKE PHILIPS N.V.

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130930

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130619

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130919

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130920

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130619

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130619

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130619

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 618248

Country of ref document: AT

Kind code of ref document: T

Effective date: 20130619

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130619

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130919

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20130619

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130619

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130619

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130619

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130619

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131019

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130619

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20131021

Ref country code: BE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130619

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130904

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130619

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130619

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130619

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130619

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130619

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 602008025505

Country of ref document: DE

Owner name: PHILIPS LIGHTING HOLDING B.V., NL

Free format text: FORMER OWNER: KONINKLIJKE PHILIPS ELECTRONICS N.V., EINDHOVEN, NL

Effective date: 20140328

Ref country code: DE

Ref legal event code: R081

Ref document number: 602008025505

Country of ref document: DE

Owner name: KONINKLIJKE PHILIPS N.V., NL

Free format text: FORMER OWNER: KONINKLIJKE PHILIPS ELECTRONICS N.V., EINDHOVEN, NL

Effective date: 20140328

26N No opposition filed

Effective date: 20140320

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130619

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602008025505

Country of ref document: DE

Effective date: 20140320

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20131130

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130619

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20131130

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20131124

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130619

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20081124

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20131124

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130619

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 8

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

Free format text: REGISTERED BETWEEN 20161006 AND 20161012

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 9

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 602008025505

Country of ref document: DE

Representative=s name: MEISSNER BOLTE PATENTANWAELTE RECHTSANWAELTE P, DE

Ref country code: DE

Ref legal event code: R081

Ref document number: 602008025505

Country of ref document: DE

Owner name: PHILIPS LIGHTING HOLDING B.V., NL

Free format text: FORMER OWNER: KONINKLIJKE PHILIPS N.V., EINDHOVEN, NL

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 10

PGFP Annual fee paid to national office [announced from national office to epo]

Ref country code: GB

Payment date: 20181130

Year of fee payment: 11

Ref country code: FR

Payment date: 20181127

Year of fee payment: 11

PGFP Annual fee paid to national office [announced from national office to epo]

Ref country code: DE

Payment date: 20190131

Year of fee payment: 11

REG Reference to a national code

Ref country code: DE

Ref legal event code: R079

Ref document number: 602008025505

Country of ref document: DE

Free format text: PREVIOUS MAIN CLASS: H05B0033080000

Ipc: H05B0045000000